2015年1月上 施工技术 第44卷第1期 CONSTRUCTION TECHNOLOGY 61 D0I:10.7672/8gjs2015010061 全套管大直径振动取土灌注桩施工新技术* 肖勇杰1 2，许万强2，陈福全12 (1.福州大学土木工程学院，福建福州350108；2.福建省岩土与环境企业工程技术研究中心，福建龙岩364000) [摘要]介绍了全套管大直径振动取土灌注桩的施工机械及施工原理.并结合实际工程应用情况，详细阐述了该 施工技术的工艺流程、存在的间题以及处理方法.工程检测和实践效果表明，该桩型具有工效高、质量可靠及环境 影响小等优点. [关键词]桩；灌注桩；全套管；高频液压振动锤；施工技术 [中图分类号]TU473 [文献标识码]A [文章编号]1002-8498(2015)01-0061-04 A New Construction Technology of Large Diameter Cast-in-place Piles with Sleeves Driven by Vibratory Hammers Xiao Yongjie.2 Xu Wanqiang? Chen Fuquan.2 (1.College of Civil Engineering Fuzhou University Fuzhou Fujian 350108 China;2.Technology Research Center of Geotechnical and Environmental Engineering Fujian Provincial Longyan Fujian 364000 China) Abstract:A new technique for installations of cast-in-place piles with sleeves driven by high frequency hydraulic vibratory hammers is presented in this paper.Based on engineering practice the detailed construction technique construction process construction difficulties and processing methods are presented in detail.The adverse impact during pile installation on environment is negligible.The results of field tests indicate that the new method of pile installation has high efficiency and reliable quality. Key words:piles;bored piles;full-sleeve;high frequency hydraulic vibratory pile hammer;construction 0引言 处理难度大，环境污染严重；泥浆护壁留下的桩侧 灌注桩不受土层变化限制，可根据土层分布情 泥皮以及孔底沉渣，降低了桩基的侧壁摩擦力和桩 况任意变化桩长，容易适应持力层高低不平的变 底反力，导致桩基承载力降低. 化，不需要接桩和截桩，节约钢材、振动小、噪声小、 为了较好地解决以上灌注桩成桩的各种施工 承载力高，适用于高层建筑、桥梁工程及港口工程 ...
全套管大直径振动取土灌注桩施工新技术.pdf
